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16 records – page 1 of 2.

Cutting frozen logs below -20C

https://library.fpinnovations.ca/en/permalink/fpipub36972
Author
Kirbach, E.
Date
April 1984
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kirbach, E.
Contributor
Alberta Research Council
Date
April 1984
Material Type
Research report
Physical Description
5 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Saw tooth
Saws
Design
Series Number
W-78
Location
Vancouver, British Columbia
Language
English
Documents
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78.pdf

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Development of a new feed speed control system for band saws

https://library.fpinnovations.ca/en/permalink/fpipub37365
Author
Kirbach, E.
Pirouz, Z.
Date
September 1991
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kirbach, E.
Pirouz, Z.
Contributor
Science Council of British Columbia
Date
September 1991
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Band saws
Saw bands
Saws
Bands
Saw mills
Automatic control
Series Number
W-1165
Location
Vancouver, British Columbia
Language
English
Abstract
The objective of this project was to develop a new feed speed control system for band saws. This system regulates the feed speed based on the cutting depth measured ahead of the saw. In comparison to other feed speed control systems presently used in sawmill operations, the new system allows maximum feed speeds without overfeeding the saw and also avoids underfeeding. The equipment developed basically involves two laser light generators which place laser lines along the saw cut on the saw entry and saw exit side, two cameras which locate the position of the laser or saw lines, and a microprocessor which processes the information from the cameras, determines the feed speed based on the known relationship between sawing variables and gives the signal to the carriage drive. Considerable experimenting was required to accurately measure the distance between the laser lines on the saw log due to colour variations of the long surface and more so due to the irregular geometry of many saw logs. Also a high working speed of the system had to be achieved to correspond to the high feed speeds used in sawmill operations. The new feed speed control system was tested with Forintek's 5-ft band mill. It was found that the actual feed speed set by the feed speed control, and the calculated feed speed were in close agreement showing that the system is able to effectively control the feed speed based on the cutting depth. Additional work is needed and will be carried out to further refine the system before commercialization can be undertaken.
Saws - Band
Sawmilling - Automation
Documents
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1165.pdf

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Effect of degree and precision of side clearance angles on sawing accuracy

https://library.fpinnovations.ca/en/permalink/fpipub5501
Author
Kirbach, E.
Sykes, D.
Date
February 1993
Edition
37292
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kirbach, E.
Sykes, D.
Date
February 1993
Edition
37292
Material Type
Research report
Physical Description
4 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Saw tooth
Saws
Design
Series Number
W-971
Language
English
Abstract
This study evaluated the effects of different combinations of balanced and unbalanced saw tooth side clearance angles on circular saw deflections.
Saws - Maintenance
Saws - Tooth design
Cutting
Documents
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971.pdf

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Effect of side grinding on the cutting performance of bandsaws

https://library.fpinnovations.ca/en/permalink/fpipub5464
Author
Kirbach, E.
Stacey, Michael J.
Date
August 1984
Edition
37012
Material Type
Research report
Field
Wood Manufacturing & Digitalization
of considerable v a r i a t i o n i n width. Forintek P u b l i c a t i o n s Kirbach, E. and M. Stacey. The E
Author
Kirbach, E.
Stacey, Michael J.
Date
August 1984
Edition
37012
Material Type
Research report
Physical Description
18 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Band saws
Saw bands
Saws
Bands
Series Number
CFS Contract 02-40-43-019
W-218
Location
Vancouver, British Columbia
Language
English
Abstract
Saws - Band
Saws - Maintenance
Documents
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218.pdf

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Exploratory tests for reducing fiber tear in bandsawing unseasoned western red cedar

https://library.fpinnovations.ca/en/permalink/fpipub37396
Author
Kirbach, E.
Date
February 1996
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kirbach, E.
Date
February 1996
Material Type
Research report
Physical Description
12 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Thuja plicata
Stresses
Band saws
Saw bands
Saws
Bands
Sawing
Series Number
W-1275
Location
Vancouver, British Columbia
Language
English
Abstract
A significant percentage of rough-cut unseasoned cedar products are down-graded due to excessive roughness caused by fiber pulling. An exploratory study was carried out to reduce or eliminate this problem. It was found that inclining the feed direction in relation to the saw movement significantly reduces degrees of fiber pulling, indicating that the problem of down-grading due to fiber pulling may be at least partly solved. Boards that show no or insignificant fiber pulling did not change their surface roughness due to the fact that the roughness on the boards is solely the function of bite per tooth. Nevertheless, this type of board always makes the grade and therefore is not a problem. Further studies are needed to accurately determine the benefits of inclined feeding or sawing directions.
Saws - Band
Cutting - Stresses
Cutting - Thuja plicata
Sawing - Thuja plicata
Documents
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1275.pdf

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Maximum hook angle for ripsawing Canadian softwood species with stellite-tipped saws

https://library.fpinnovations.ca/en/permalink/fpipub5472
Author
Kirbach, E.
Bonac, Thomas
Klemarewski, A.
Date
December 1984
Edition
37056
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kirbach, E.
Bonac, Thomas
Klemarewski, A.
Date
December 1984
Edition
37056
Material Type
Research report
Physical Description
6 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Saw tooth
Saws
Design
Series Number
W-266
Location
Vancouver, British Columbia
Language
English
Abstract
Saws - Tooth design
Saws - Ripsaws
Saws - Tipping
Documents
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266.pdf

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New cutter design for chain sawing

https://library.fpinnovations.ca/en/permalink/fpipub5466
Author
Kirbach, E.
Stacey, Michael J.
Date
March 1985
Edition
37016
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kirbach, E.
Stacey, Michael J.
Date
March 1985
Edition
37016
Material Type
Research report
Physical Description
27 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Saws
Design
Series Number
CFS Contract 02-40-12-022
W-222
Location
Vancouver, British Columbia
Language
English
Abstract
Saws - Chain
Cutters - Design
Documents
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222.pdf

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Principles of debarking, sawing, chipping, knife and abrasive planing and moulding

https://library.fpinnovations.ca/en/permalink/fpipub37394
Author
Kirbach, E.
Date
February 1989
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kirbach, E.
Date
February 1989
Material Type
Research report
Physical Description
91 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wear
Sawing
Bark
Series Number
W-1266
Location
Vancouver, British Columbia
Language
English
Abstract
This report describes methods of debarking, sawing, chipping, knife and abrasive planing and moulding, along with methods to improve the wear resistance of cutting tools. Saw and knife maintenance are also covered.
Barking
Sawing
Chipping
Cutting edges - Wear
Cutters - Maintenance
Documents
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1266.pdf

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Problems and solutions in maintenance and operation of band saws

https://library.fpinnovations.ca/en/permalink/fpipub37133
Author
Kirbach, E.
Date
March 1986
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kirbach, E.
Date
March 1986
Material Type
Research report
Physical Description
25 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Band saws
Saw bands
Saws
Bands
Series Number
CFS No. 36;02-12-15-004
W-367
Location
Vancouver, British Columbia
Language
English
Abstract
Saws - Band
Documents
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367.pdf

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Procedure to accurately determine the minimum side clearance for wood cutting saws

https://library.fpinnovations.ca/en/permalink/fpipub5467
Author
Kirbach, E.
Stacey, Michael J.
Date
February 1985
Edition
37017
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Kirbach, E.
Stacey, Michael J.
Date
February 1985
Edition
37017
Material Type
Research report
Physical Description
11 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Saws
Kerf
Sawing
Recovery
Series Number
CFS Contract 02-40-12-019
W-223
Location
Vancouver, British Columbia
Language
English
Abstract
Recovery
Sawing - Kerf
Saws - Resaws
Documents
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223.pdf

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16 records – page 1 of 2.